Cheap flights from Calgary to Montreal from C$ 140

The cheapest month to fly to Montreal from Calgary is in December. Flight prices, which tend to average around C$ 75, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of December, then book flights to Montreal from Calgary during January instead. Flights to Montreal in January, while not as cheap as those in December, still average around C$ 133.

Our data shows that Friday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 524. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Calgary to Montreal for around C$ 848.

Our data shows that the cheapest Calgary to Montreal flights are usually those with departure times in the afternoon. Our users have found flights to Montreal in the afternoon for as low as C$ 469. Flights at noon are often more expensive with an average ticket price of C$ 1,162.

Fly from Calgary to Montreal Pierre Elliott Trudeau Intl for the best Calgary - Montreal flight prices

You are more likely to see cheaper flights to Montreal from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around C$ 442 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from Calgary for as low as C$ 374 on momondo.

You could potentially save up to 38% on your flight if you consider stops on a Calgary to Montreal flight.

As of May 2026, prices for Calgary to Montreal flights are approximately 30% more expensive when compared to flights at the same time last year.

WestJet and Porter Airlines are the most popular carriers operating from Calgary to Montreal

Porter Airlines, WestJet and Air Canada are the top three most popular airlines that fly to Montreal from Calgary according to our data. Porter Airlines is the first choice among our users, with 42% of people opting to fly with this airline when travelling to Montreal. Keep in mind that there are 4 different airlines that fly to Montreal on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% of flights between Calgary and Montreal have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Porter Airlines has had the least delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

23 flights are operational daily from Calgary to Montreal as of May 2026. The most popular departure time for this route is 10:00a.m., with 52% of flights per day taking off at noon.

162 flights are operational weekly from Calgary to Montreal as of May 2026. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.